<template>
	<div>
		<div id="slider" class="mui-slider">
			<div id="sliderSegmentedControl" class="mui-scroll-wrapper mui-slider-indicator mui-segmented-control mui-segmented-control-inverted">
				<div class="mui-scroll">
					<a :class="['mui-control-item', item.id == 0 ? 'mui-active' : '']" v-for="item in cates" :key="item.id" @tap="getPhotoListByCateId(item.id)">{{ item.title }}</a>
				</div>
			</div>
		</div>
		<ul class="photo-list">
			<router-link tag="li" v-for="item in list" :key="item.id" :to="'/home/photoinfo/'+item.id">
				<img v-lazy="item.img_url" />
				<div class="info">
					<h1 class="info-title">{{item.title}}</h1>
					<div class="info-body">{{item.zhaiyao}}</div>
				</div>
			</router-link>
		</ul>
	</div>
</template>

<script>
//mui滑动
// 这个JS会引起严格模式的冲突
// 解决  mui.js中的非严格模式的代码改掉(不现实)
// webpack打包的时候 严格模式禁用
import mui from '../../lib/mui/js/mui.min.js';
import { Toast } from 'mint-ui';
export default {
	data() {
		return {
			cates: [], //分类
			list: []  //图片
		};
	},
	created() {
		this.getAllCategory();
		this.getPhotoListByCateId(0);
	},
	mounted() {
		//操作元素 这里的DOM元素是最新的
		mui('.mui-scroll-wrapper').scroll({
			deceleration: 0.0005 //flick 减速系数，系数越大，滚动速度越慢，滚动距离越小，默认值0.0006
		});
	},
	methods: {
		getAllCategory() {
			this.$http.get('api/getimgcategory').then(result => {
				if (result.body.status == 0) {
					result.body.message.unshift({ title: '全部', id: 0 });
					this.cates = result.body.message;
				} else {
					Toast('获取分类数据失败...');
				}
			});
		},
		getPhotoListByCateId(cateId){
			this.$http.get("api/getimages/"+cateId)
				.then(res=>{
					if(res.body.status == 0){
						this.list = res.body.message
					}else {
						Toast('获取分类数据失败...');
					}
				})
		}
	}
};
</script>

<style scoped="scoped" lang="scss">
* {
	touch-action: pan-y;
}

.photo-list {
	list-style: none;
	margin: 0;
	padding: 10px;
	padding-bottom: 0;
	li {
		background-color: #ccc;
		text-align: center;
		margin-bottom: 10px;
		box-shadow: 0 0 9px #999;
		position: relative;
		img {
			width: 100%;
			vertical-align: middle;
		}
		img[lazy="loaidng"]{
			width: 40px;
			height: 300px;
			margin: auto;
		}
		.info{
			color: #fff;
			text-align: left;
			position: absolute;
			max-height: 84px;
			bottom: 0;
			background-color: rgba(0,0,0,.4);
			.info-title{
				font-size: 14px;
			}
			.info-body{
				font-size: 13px;
			}
		}
	}
}
</style>
